The email was sent to a bundle of recicpients on Thursday and only the Bigpond were rejected - with messages received today (Sunday). The error message for all was The reason for the problem: 5.4.7 - Delivery expired (message too old) 550-'5.7.1 Connection refused. 60.241.0.14 is blacklisted in Invaluement RBL List. See http://www.invalument.com/removal'   I did a Google search and have switched my outgoing mail server to use SSL (it did have no encryption) Port 465. Could this be the problem? I won't know for a few days if it has worked will I? ... View more

I got the same error for a bundle of emails rejestec from Bigpond today '5.7.1 Connection refused. 60.241.0.14 is blacklisted in Invaluement RBL List.   It must be a TPG issue.       ... View more

I am having the same problem. I haven’t changed anything recently. ... View more

there are multiple different error messages, I've put two below   #1    ----- The following addresses had permanent fatal errors ----- <xxxxxx>     (reason: 554-irony-in41.internal.iinet.net.au)    ----- Transcript of session follows ----- ... while talking to asav.iinet.net.au.: <<< 554-irony-in41.internal.iinet.net.au <<< 554 Your access to this mail system from 60.241.0.26 has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means. 554 5.0.0 Service unavailable   #2 Your message did not reach some or all of the intended recipients.      The following recipient(s) cannot be reached:      xxxxx on 11/02/2022 8:22 AM             554 5.7.1 [TPG-S02] [21AMLkHU031444] Message rejected as it appears to be spam. Use SMTP AUTH, PostOffice, or contact the Postmaster Team <postmaster@tpg.com.au>   ... View more